66075565526166 has 32 divisors (see below), whose sum is σ = 151068402293760. Its totient is φ = 18873915728256.

The previous prime is 66075565526149. The next prime is 66075565526167. The reversal of 66075565526166 is 66162556557066.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66075565526097 and 66075565526106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66075565526167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200553411 + ... + 200882606.

It is an arithmetic number, because the mean of its divisors is an integer number (4720887571680).

Almost surely, 2^{66075565526166} is an apocalyptic number.

66075565526166 is an abundant number, since it is smaller than the sum of its proper divisors (84992836767594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66075565526166 is a wasteful number, since it uses less digits than its factorization.

66075565526166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401439948.

The product of its (nonzero) digits is 408240000, while the sum is 66.

The spelling of 66075565526166 in words is "sixty-six trillion, seventy-five billion, five hundred sixty-five million, five hundred twenty-six thousand, one hundred sixty-six".